KR870009033A - Iron ore melting - Google Patents

Iron ore melting Download PDF

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Publication number
KR870009033A
KR870009033A KR870002022A KR870002022A KR870009033A KR 870009033 A KR870009033 A KR 870009033A KR 870002022 A KR870002022 A KR 870002022A KR 870002022 A KR870002022 A KR 870002022A KR 870009033 A KR870009033 A KR 870009033A
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KR
South Korea
Prior art keywords
iron ore
fusion method
reaction
reburn
melt
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KR870002022A
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Korean (ko)
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KR920000520B1 (en
Inventor
에드윈 터너 리차드
브로츠만 칼
나트 한스 게오르그 파스빈더 레르
Original Assignee
원본미기재
클로크너 씨알에이 테크놀러지 지엠비에이취
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Application filed by 원본미기재, 클로크너 씨알에이 테크놀러지 지엠비에이취 filed Critical 원본미기재
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Gears, Cams (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

A method for the melt reduction of iron ores, in which iron oxide in the liquid state is substantially reduced and the energy required for the heat balance of the process is generated by adding carbonaceous fuels to the melt and by afterburning the resulting reaction gases, mainly CO and H2. The reaction gases are afterburned successively two or more times in oxygen-containing gas jets that blow into reaction spaces which are effectively independent of each other.

Description

철광석 융해법Iron Ore Melting Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1도 및 제 2도는 본 발명에 의한 상이한 정상부 송풍수단 배열의 드럼형 용융로의 종단면도.1 and 2 are longitudinal cross-sectional views of drum type melting furnaces of different top blowing means arrangements according to the invention.

제 3도는 제 2반응용기가 연결된 용융로의 종단면도.3 is a longitudinal sectional view of a melting furnace to which a second reaction vessel is connected.

제 4도는 사이클론 근방 출구쪽에 연결된 페가스용 냉각실이 있는 드럼형 용융로의 종단면도.4 is a longitudinal sectional view of a drum-type melting furnace having a cooling chamber for waste gas connected to an outlet near a cyclone.

Claims (10)

효과적으로 서로 독립된 반응 공간속으로 분출되는 산소함유 가스분사들 속에서 반응생성가스가 재연소되는 것을 특징으로 하는, 주로 CO 및 H2로 되는 반응생성가스를 재연소하므로써 또 용융물에 탄소질 연료를 투입하므로써 공정의 열수지에 소요되는 에너지를 발생하고 산화철이 액상속에서 실질적으로 분해되는 철광성 융해법.Injecting carbonaceous fuel into the melt by reburning the reaction product gases, mainly CO and H 2 , characterized in that the reaction product gases are reburned in oxygen-containing gas jets that are effectively ejected into independent reaction spaces. This is an iron ore fusion method that generates energy for the heat balance of the process and the iron oxide is substantially decomposed in the liquid phase. 제 1항에 있어서 가스분사의 반응공간이 반응가스의 유동방향쪽으로 하나 다음 하나씩으로 위치하고 분해위치는 제 2반응 영향점 또는 재연소가스분사에서 더 작은 것을 특징으로 하는 철광석 융해법.The iron ore fusion method according to claim 1, wherein the reaction space of the gas injection is one after the other in the flow direction of the reaction gas, and the decomposition point is smaller at the second reaction point of impact or the reburn gas injection. 제 1항 내지 2항에 있어서 용융로 속의 용융물의 고분해 위치구역에서 강한 액교반이 유지되는 것을 특징으로 하는 철광석 융해법.The iron ore melting method according to any one of claims 1 to 2, wherein strong liquid stirring is maintained in a high decomposition site of the melt in the melting furnace. 제 1항 내지 3항 중 어느 하나의 항에 있어서 둘 이상의 단계의 재연소가 한 개의 용기 또는 두개가 서로 연결된 용기 속에서 수행되는 것을 특징으로 하는 철광석 융해법.Iron ore fusion method according to any one of claims 1 to 3, characterized in that the recombustion of two or more stages is carried out in one vessel or two interconnected vessels. 제 1항 내지 4항 중 어느 하나의 항에 있어서 원광석은 제 2반응공간 또는 재연소용 또 다른 반응공간 속에 투입되는 것을 특징으로 하는 철광석 융해법.The iron ore fusion method according to any one of claims 1 to 4, wherein the ore is introduced into the second reaction space or another reaction space for reburning. 제 1항 내지 5항 중 어느 하나의 항에 있어서 대량전환은 두 개의 재연소용 반응공간사이의 액상속에서 일어나는 것을 특징으로 하는 철광석 융해법.The iron ore fusion method according to any one of claims 1 to 5, wherein the mass conversion takes place in a liquid phase between two reaction chambers for reburn. 제 1항 내지 6항 중 어느 하나의 항에 있어서, 탄소질연료가 재연소용 제 1반응공간 즉 최고분해 위치 구역속의 용융물 속으로 투입되는 것을 특징으로 하는 철광석 융해법.The iron ore fusion method according to any one of claims 1 to 6, wherein the carbonaceous fuel is introduced into the melt in the first reaction space for recombustion, that is, the highest decomposition site zone. 제 1항 내지 7항 중 어느 하나의 항에 있어서 산소함유가스분사가 물표면에 대하여 경사지게 반응공간 속으로 분출되는 것을 특징으로 하는 철광석 융해법.The iron ore melting method according to any one of claims 1 to 7, wherein an oxygen-containing gas spray is ejected into the reaction space inclined with respect to the water surface. 제 1항 내지 8항 중 어느 하나의 항에 있어서 30% 내지 50%의 재연소율이 반응로속의 제 1재연단계 즉 고분해위치에 설정되고 60% 내지 100%의 재연소율이 제 2재연소 단계에 설정된 것을 특징으로 하는 철광석 융해법.The reburn rate according to any one of claims 1 to 8, wherein a reburn rate of 30% to 50% is set in the first regeneration stage, i. Iron ore fusion method characterized in that set in. 제 1항 내지 9항 중 어느 하나의 항에 있어서 예열공기가 재연소용 산소함유 가스로써 사용되는 것을 특징으로 하는 철광석 융해법.The iron ore fusion method according to any one of claims 1 to 9, wherein the preheated air is used as an oxygen-containing gas for reburning. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870002022A 1986-03-08 1987-03-06 Method for the melt reduction of iron ores KR920000520B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3607775.5 1986-03-08
DE19863607775 DE3607775A1 (en) 1986-03-08 1986-03-08 METHOD FOR MELTING REDUCTION OF IRON ORE

Publications (2)

Publication Number Publication Date
KR870009033A true KR870009033A (en) 1987-10-22
KR920000520B1 KR920000520B1 (en) 1992-01-14

Family

ID=6295894

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870002022A KR920000520B1 (en) 1986-03-08 1987-03-06 Method for the melt reduction of iron ores

Country Status (15)

Country Link
US (1) US4798624A (en)
EP (1) EP0236802B2 (en)
JP (1) JPS62263908A (en)
KR (1) KR920000520B1 (en)
CN (1) CN1005274B (en)
AT (1) ATE54333T1 (en)
AU (1) AU572043B2 (en)
BR (1) BR8701047A (en)
CA (1) CA1286113C (en)
CS (1) CS265234B2 (en)
DE (2) DE3607775A1 (en)
ES (1) ES2000076T5 (en)
IN (1) IN166837B (en)
SU (1) SU1500166A3 (en)
ZA (1) ZA871469B (en)

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DE3607776A1 (en) * 1986-03-08 1987-09-17 Kloeckner Cra Tech METHOD FOR PRODUCING IRON
DE3737271A1 (en) * 1986-12-23 1988-07-07 Korf Engineering Gmbh MELTING CARBURETTOR
ES2010498T3 (en) * 1988-02-12 1994-07-16 Kloeckner Cra Patent PROCEDURE AND APPARATUS FOR POSTCOMBUSTION.
ATE139267T1 (en) * 1990-03-13 1996-06-15 Cra Services METHOD FOR PRODUCING METALS AND ALLOYS IN A MELTING REDUCTION VESSEL
JP2918646B2 (en) * 1990-07-18 1999-07-12 川崎重工業株式会社 Smelting reduction furnace
DE4042176C2 (en) * 1990-12-29 1993-12-09 Tech Resources Pty Ltd Process for the reduction of metal oxides in the molten state
US5378260A (en) * 1991-07-26 1995-01-03 The United States Of America As Represented By The Department Of Energy Two-zone countercurrent smelter system and process
DE4213007C1 (en) * 1992-04-21 1993-12-16 Tech Resources Pty Ltd Method and device for sealing nozzles in the surrounding refractory lining
WO1994000533A1 (en) * 1992-06-29 1994-01-06 Technological Resources Pty. Limited Treatment of waste
DE4307484A1 (en) * 1993-03-10 1994-09-15 Metallgesellschaft Ag Process for the direct reduction of materials containing iron oxide with solid carbon-containing reducing agents
US5733358A (en) * 1994-12-20 1998-03-31 Usx Corporation And Praxair Technology, Inc. Process and apparatus for the manufacture of steel from iron carbide
NL9500264A (en) * 1995-02-13 1996-09-02 Hoogovens Staal Bv Method for producing liquid pig iron.
NL9500600A (en) * 1995-03-29 1996-11-01 Hoogovens Staal Bv Device for producing liquid pig iron by direct reduction.
AUPN226095A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPO426096A0 (en) 1996-12-18 1997-01-23 Technological Resources Pty Limited Method and apparatus for producing metals and metal alloys
AUPO426396A0 (en) 1996-12-18 1997-01-23 Technological Resources Pty Limited A method of producing iron
AUPO944697A0 (en) * 1997-09-26 1997-10-16 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPP442598A0 (en) 1998-07-01 1998-07-23 Technological Resources Pty Limited Direct smelting vessel
MY119760A (en) 1998-07-24 2005-07-29 Tech Resources Pty Ltd A direct smelting process
AUPP483898A0 (en) 1998-07-24 1998-08-13 Technological Resources Pty Limited A direct smelting process & apparatus
AUPP554098A0 (en) 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
AUPP570098A0 (en) 1998-09-04 1998-10-01 Technological Resources Pty Limited A direct smelting process
AUPP647198A0 (en) 1998-10-14 1998-11-05 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
AUPP805599A0 (en) 1999-01-08 1999-02-04 Technological Resources Pty Limited A direct smelting process
AUPQ083599A0 (en) 1999-06-08 1999-07-01 Technological Resources Pty Limited Direct smelting vessel
AUPQ152299A0 (en) 1999-07-09 1999-08-05 Technological Resources Pty Limited Start-up procedure for direct smelting process
AUPQ205799A0 (en) 1999-08-05 1999-08-26 Technological Resources Pty Limited A direct smelting process
AUPQ213099A0 (en) 1999-08-10 1999-09-02 Technological Resources Pty Limited Pressure control
AUPQ308799A0 (en) 1999-09-27 1999-10-21 Technological Resources Pty Limited A direct smelting process
AUPQ346399A0 (en) 1999-10-15 1999-11-11 Technological Resources Pty Limited Stable idle procedure
AUPQ365799A0 (en) 1999-10-26 1999-11-18 Technological Resources Pty Limited A direct smelting apparatus and process
US6602321B2 (en) 2000-09-26 2003-08-05 Technological Resources Pty. Ltd. Direct smelting process
US20060228294A1 (en) * 2005-04-12 2006-10-12 Davis William H Process and apparatus using a molten metal bath
US11635257B2 (en) * 2013-09-27 2023-04-25 Nsgi Steel Inc. Smelting apparatus and metallurgical processes thereof

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US2894831A (en) * 1956-11-28 1959-07-14 Old Bruce Scott Process of fluidized bed reduction of iron ore followed by electric furnace melting
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Also Published As

Publication number Publication date
EP0236802A3 (en) 1988-06-01
EP0236802B2 (en) 1997-11-19
ES2000076B3 (en) 1990-09-01
CS147287A2 (en) 1988-09-16
US4798624A (en) 1989-01-17
DE3607775C2 (en) 1988-08-25
DE3607775A1 (en) 1987-09-17
AU6919987A (en) 1987-09-10
EP0236802B1 (en) 1990-07-04
EP0236802A2 (en) 1987-09-16
CS265234B2 (en) 1989-10-13
ES2000076T5 (en) 1998-01-01
CN87102252A (en) 1987-09-16
IN166837B (en) 1990-07-21
KR920000520B1 (en) 1992-01-14
DE3763487D1 (en) 1990-08-09
ZA871469B (en) 1987-08-17
ATE54333T1 (en) 1990-07-15
AU572043B2 (en) 1988-04-28
CN1005274B (en) 1989-09-27
BR8701047A (en) 1988-01-05
ES2000076A4 (en) 1987-11-16
JPH0219167B2 (en) 1990-04-27
SU1500166A3 (en) 1989-08-07
JPS62263908A (en) 1987-11-16
CA1286113C (en) 1991-07-16

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